Non-jamming slider



Jan. 26, 1960 L. H. MORIN NON-JAMMING SLIDER Filed Jan. 23. 1953 INVENT LOUIS H. M

ATTORNE as to This invention relates to sliders employed on separable fastener stringers to couple and uncouple the stringers. More particularly, the invention deals with a non-jamming slider, that is to say, the slider having means to yield when subjected to stresses or strains in the operation of coupling and uncoupling stringers.

Still more particularly, the invention deals with a slider structure, wherein the flanges of one wall of the slider body constitute part of a supplemental wall with yieldable means for supporting the supplemental wall on the main wall to facilitate movement of the flanges and supplemental wall to avoid jamming of the slider.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

Fig. 1 is a plan view of a slider made according to my invention.

Fig. 2 is an end view of the slider, as seen in Fig. 1.

Fig. 3 is a section on the line 3-3 of Fig. l; and

Fig. 4 is a plan view of a modified form of spring which I employ.

In Figs. 1 to 3, inclusive, I have shown at a slider for separable fastener stringers employing scoops which are coupled and uncoupled by a slider movable along said stringers. The slider comprises spaced top and bottom walls 11 and 12 joined at one wide end of the slider in a connecting web 13 which divides said end into diverging channels 14 and 15. The wall 11 has depending side flanges 16 which partially form the channels 14 and and at 17 is shown a supplemental bottom wall, generally of the contour of the top wall 11 and including upwardly extending side flanges 18 in alinement with the flanges 16 and again partially forming the channels 14, 15.

The flanges 16 and 18 collectively form the single channel at the contracted end of the slider as with other devices of this type and kind. It will appear from a consideration of Fig. 2 of the drawing that the wall 12 is cutaway at the sides 19 thereof to receive the flanges 18, otherwise this wall is generally of the contour of the wall 11.

The wall 12 has, adjacent the web 13, an integral downwardly projecting pin 20, the outer end of which is reduced, as seen at 21. The pin 20 passes through an aperture 22 in the supplemental wall 17 and a concavoconvex centrally apertured disc-shaped spring 23 is mounted on the reduced end 21. The spring 23 is held in position by a rivet head 24. The lower surface of the supplemental wall 17 is recessed, as seen at 25, to receive the peripheral edge portion 26 of the spring in the manner clearly illustrated in Fig. 3 of the drawing.

It will appear from a consideration of Fig. 3 that, in the event that the slider is subjected to jamming or stresses or strains, which would tend to retard movement of the slider on the stringers, the flanges 18, as well as the flanges 16 and 18 is capable of varying by virtue of theyieldability of the flanges 18.

The top wall 11 of the slider has, at opposed sides thereof, upwardly projecting U-shaped pivot bearings 27 for reception of the pivot of a pull commonly employed in operating sliders of the kind under consideration. The pull is not shown, as it forms no part of the present invention.

It is also preferred that the slider wall 11 be recessed, as seen at 28, note Fig. 3, adjacent the bearings 27 to provide free swinging movement of a pull.

In Fig. 4 of the drawing, I have shown at 29 a modified form of spring member which I employ, the member 29' being of the same general cross-sectional contour, as the spring 23 and centrally apertured as seen at 39 to receive the reduced end 21. The outer peripheral portion of the spring 29, instead of being circumferentially continuous throughout its entire radial dimensions, is divided into circumferentially spaced spring members 31. The type of spring shown in Fig. 4 is intended for use where less tension is required to resist jamming strains; whereas the spring 23 will provide a more substantial spring tension more firmly maintaining the flanges 16 and 18 in relationship to each other.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A non-jamming slider comprising a channeled slider body defined by spaced walls integrally joined at a wide end in a connecting web, one wall of the slider including integral side flanges partially defining the channel of said body, a supplemental wall arranged upon the opposed wall of the slider body, said supplemental wall including side flanges completing the formation of the channels of the slider body, a mounting member on the slider body extending through said supplemental wall at the wide end portion of the slider body, a spring fixed to said member and tensionally engaging the supplemental wall to normally support the same in operative position and facilitating outward movement of the supplemental wall with respect to the second named wall of the slider body, said mounting member comprising an integral outwardly projecting pin on the slider body, said pin having a reduced outer end on which said spring is mounted, and said reduced end being riveted in securing the spring in position.

2. A non-jamming slider comprising a channeled slider body defined by spaced walls integrally joined at a wide end in a connecting web, one wall of the slider including integral side flanges partially defining the channel of said body, a supplemental wall arranged upon the opposed wall of the slider body, said supplemental wall including side flanges completing the formation of the channelsof the slider body, a mounting member on the slider body extending through said supplemental wall at the wide end portion of the slider body, a spring fixed to said member and tensionally engaging the supplemental wall to normally support the same in operative position and facilitating outward movement of the supplemental wall with respect to the second named wall of the slider body, said mounting member comprising an integral outwardly projecting pin on the slider body, said pin having a reduced outer end on which said spring is mounted, said reduced end being riveted in securing the spring in position, and said spring comprising a concavo-convex disc, the peripheral edges of which engage said supplemental wall.

3. A non-jamming slider comprising a channeled Patented Jan. 26, 1960 slider body defined by spaced walls integrally joined at a wide end in a connecting web, one wall of the slider including integral side flanges partially defining the channel of said body, a supplemental wall arranged upon the opposed Wall of the slider body, said supplemental wall in eluding side flanges completing the formation of the channels of the slider body, a mounting member on the slider body extending through said supplemental wall at the wide end portion of the slider body, a spring fixed to said member and tensionally engaging the supplemental wall to normally support the same in operative position and facilitating outward movement of the supplemental wall with respect to the second named wall of the slider body, said mounting member'comprisingan integral outwardly projecting pin on the slider body, said pin having a reduced outer end on which said spring is mounted, said reduced end being riveted in securing the spring in position, said spring comprising a concaveconvex disc, the peripheral edges of which engage said supplemental wall, and the outer surface of the supplemental wall being recessed to receive the peripheral edges of said disc spring.

4. A non-jamming slider comprising a channeled slider body defined by spaced walls integrally joined at a wide end in a connecting web, one wall of the slider including integral side flanges partially defining the channel of said body, a supplemental wall arranged upon the opposed wall of the slider body, said supplemental wall including side flanges completing the formation of the channels of the slider body, a mounting member on the slider body extending through said supplemental wall at the wide end portion of the slider body, a spring fixed to said member and tensionally engaging the supplemental wall to normally support the same in operative position and facilitating outward movement of the supplemental wall with respect to the second named wall of the slider body, said mounting member comprising an integral outwardly projecting pin on the slider body, said pin having a reduced outer end on which said spring is mounted, said reduced end being riveted in securing the spring in position, said spring comprising a conc'avo-convex disc, the peripheral edges of which engage said supplemental wall, the outer surface of the supplemental wall being recessed to receive the peripheral edges of said disc spring, and said peripheral edge portion of the disc being divided circumferentially into independent spring members.

5. A non-jamming slider comprising a channeled slider body defined by a pair of spaced apart walls joined at one end by a connecting web, one wall including inteone wall completely define the channels of the slider body, an annular dished spring member having a centrally apertured portion mounted on said post and tensionally engaging the outer side of the supplemental wall to normally support the same in engagement with said other wall, said post having a reduced and shouldered outer end portion engaging the apertured portion of said spring member and also having means on said end portion for fixedly and permanently retaining the spring member thereon, said outer side of the supplemental wall being recessed to receive peripheral edges of the spring member. 6. A non-jamming slider comprising a channelled slider body defined by a pair of spaced apart walls joined at one end by a connecting web, one wall including integral side flanges partially defining the channels of said body, said one wall having means for attaching a pull thereto, the other wall having a centrally disposed post extending outwardly therefrom, a movable supplemental wall disposed over the outer side of said other wall and having an aperture for receiving said post, said supplemental wall including side flanges which with the flanges of said one wall completely define the channels of the slider body, an annular dished spring member having a centrally apertured portion mounted on said post and tensionally engaging the outer side of the supplemental wall to normally support the same in engagement with said other wall, said post having an outer end portion engaging the apertured portion of said spring member and also having means on said end portion for fixedly and permanently retaining the spring member thereon.

References Cited in the file of this patent UNITED STATES PATENTS 2,090,124 I-Iossmann Aug. 17, 1937 2,289,066 Olson July 7, 1942 2,448,192 Poux Aug. 31, 1348 2,526,653. Gerstman Oct. 24, 1950 2,624,128 Phillips Jan. 6, 1953 2,681,490 Okolowiez June 22, 1954 

